Whitefield, New Hampshire climate: Normal weather by month, frost dates and records
Whitefield's normal year runs from 5°F January nights to 80°F July afternoons, with 37.0 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 5.8°C, January lows of −15°C, July highs of 27°C, 941 mm of precipitation a year.
- NOAA stationWhitefield Mount Washington Airport
- Station IDUSW00054728
- Location44.37°N 71.55°W
- Elevation1,074 ft (327 m)
- From the center3 miles
- Population (town)2,528
- Census place1,438
On October 14, the normal high in Whitefield is 58°F and the normal low 34°F, and the chance of measurable rain or snow is 49%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Whitefield.
- Jan 27° 5°
- Feb 31° 5°
- Mar 40° 16°
- Apr 54° 29°
- May 67° 39°
- Jun 76° 48°
- Jul 80° 53°
- Aug 78° 51°
- Sep 71° 44°
- Oct 58° 34°
- Nov 45° 25°
- Dec 33° 13°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Whitefield each month?
July is the warmest month, with normal highs of 80°F; January the coldest, with normal lows of 5°F. The most precipitation falls in July (4.45 in), the least in February (1.45 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 27°F | 5°F | 16.1°F | 2.12 | 11 | <1 | 31 | 9 h 10 min |
| February | 31°F | 5°F | 18.1°F | 1.45 | 11 | <1 | 28 | 10 h 30 min |
| March | 40°F | 16°F | 27.9°F | 2.06 | 13 | <1 | 29 | 11 h 50 min |
| April | 54°F | 29°F | 41.4°F | 2.89 | 14 | <1 | 22 | 13 h 20 min |
| May | 67°F | 39°F | 53.2°F | 3.78 | 15 | <1 | 9 | 14 h 40 min |
| June | 76°F | 48°F | 61.9°F | 3.94 | 17 | 1 | 1 | 15 h 30 min |
| July | 80°F | 53°F | 66.6°F | 4.45 | 17 | 1 | <1 | 15 h 10 min |
| August | 78°F | 51°F | 64.7°F | 3.72 | 17 | 1 | <1 | 14 h 10 min |
| September | 71°F | 44°F | 57.1°F | 3.64 | 13 | <1 | 5 | 12 h 40 min |
| October | 58°F | 34°F | 45.7°F | 3.66 | 15 | <1 | 16 | 11 h |
| November | 45°F | 25°F | 34.9°F | 2.89 | 14 | <1 | 25 | 9 h 40 min |
| December | 33°F | 13°F | 23.0°F | 2.44 | 14 | <1 | 29 | 8 h 50 min |
| Year (annual) | 55°F | 30°F | 42.5°F | 37.04 | 171 | 3 | 194 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | −3°C | −15°C | −8.8°C | 54 mm |
| February | −1°C | −15°C | −7.7°C | 37 mm |
| March | 4°C | −9°C | −2.3°C | 52 mm |
| April | 12°C | −2°C | 5.2°C | 73 mm |
| May | 20°C | 4°C | 11.8°C | 96 mm |
| June | 24°C | 9°C | 16.6°C | 100 mm |
| July | 27°C | 12°C | 19.2°C | 113 mm |
| August | 26°C | 11°C | 18.2°C | 94 mm |
| September | 22°C | 6°C | 13.9°C | 92 mm |
| October | 14°C | 1°C | 7.6°C | 93 mm |
| November | 7°C | −4°C | 1.6°C | 73 mm |
| December | 0°C | −10°C | −5.0°C | 62 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Jefferson (4 miles away), gets 95 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00054728; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Whitefield?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, September has the fewest days with rain (13).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00054728.
When is the last frost in Whitefield?
In Whitefield, the last spring frost (32°F) comes after May 27 in half of years and after June 10 in one year in ten; the first autumn frost comes before September 19 in half of years and before September 8 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- May 271 year in 10 after June 10; 9 in 10 after May 11
- First autumn frost, half of years before
- September 191 year in 10 before September 8; 9 in 10 before October 3
NOAA puts the median frost-free season at 116 days, and the season without a hard freeze (28°F) at 142 days.
A hard freeze (28°F) comes after May 11 in half of springs and before October 2 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Whitefield in zone 4b in ZIP code 03598, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Whitefield's NOAA station is in zone 4a: the coldest night of a typical year reaches −27°F (24 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in New Hampshire · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00054728; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Whitefield?
In a normal year in Whitefield, 3 days a year reach 90°F, 194 nights fall to 32°F or colder and 171 days bring measurable precipitation.
- Days at 90°F or more
- 3a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 194a normal year
- Days that stay below freezing
- 67high of 32°F or less
- Days with 0.01 inch of precipitation
- 171a normal year
The highest temperature in this station's record (since 1996) is 95°F, on August 9, 2001; the lowest is −38°F, on January 16, 2009.
The wettest calendar year on that record is 2010, with 44.26 in.
Source: NOAA NCEI 1991-2020 annual normals, station USW00054728; records: ACIS (NOAA Regional Climate Centers), station USW00054728. Records use complete months only; a month missing more than three days is left out.
How sunny is Whitefield?
Over a year 66% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Whitefield, 3.5 kWh per square metre a day. September is the sunniest month (73%) and December the cloudiest (54%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 59% | 1.4 |
| February | 62% | 2.3 |
| March | 65% | 3.5 |
| April | 64% | 4.4 |
| May | 64% | 5.1 |
| June | 67% | 5.5 |
| July | 71% | 5.6 |
| August | 73% | 5.0 |
| September | 73% | 4.0 |
| October | 62% | 2.4 |
| November | 59% | 1.6 |
| December | 54% | 1.1 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Whitefield need?
A normal year in Whitefield brings 8,376 heating degree days, 56% more than the median U.S. place (5,373), and 230 cooling degree days, 75% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 1,805 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,517 | 0 |
| February | 1,313 | 0 |
| March | 1,150 | 0 |
| April | 710 | 1 |
| May | 373 | 8 |
| June | 136 | 43 |
| July | 44 | 95 |
| August | 75 | 64 |
| September | 255 | 19 |
| October | 597 | 1 |
| November | 903 | 0 |
| December | 1,302 | 0 |
| Year (annual) | 8,376 | 230 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00054728. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Whitefield been warmer than normal lately?
2025 averaged 41.8°F, 0.8°F below the 1991-2020 normal of 42.5°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 43.6°F | +1.1°F | 27.10 |
| 2022 | 42.7°F | +0.2°F | 34.61 |
| 2023 | 44.3°F | +1.8°F | 39.65 |
| 2024 | 44.7°F | +2.2°F | 42.38 |
| 2025 | 41.8°F | −0.8°F | – |
Source: observed years: ACIS, station USW00054728. A year counts only with all twelve months complete.
How does Whitefield's climate compare?
Whitefield is warmer than 4 of the other 27 places with their own NOAA record in New Hampshire, and wetter than 1. Across the 7,247 U.S. stations with normals, its annual mean of 42.5°F is warmer than 11%.
In the Köppen classification computed from these normals, Whitefield is Dfb: continental, no dry season, warm summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Questions about Whitefield's climate
What is the coldest month in Whitefield?
January, with a normal high of 27°F and a normal low of 5°F. The warmest is July (80°F by day, 53°F at night).
Does it snow in Whitefield?
Yes. NOAA publishes no 1991-2020 snowfall normal for Whitefield's NOAA station; the nearest record that keeps one, Jefferson (4 miles away), records 95 inches of snow in a normal year.
What is the rainiest month in Whitefield?
July, with 4.45 in of precipitation in a normal year; the driest is February with 1.45 in.
What plant hardiness zone is Whitefield in?
The USDA's 2023 map puts Whitefield in zone 4b in ZIP code 03598, the nearest ZIP area. By the same method at Whitefield's NOAA station, the coldest night of a typical year reaches −27°F (24 years, 1991-2020): zone 4a.
How late can frost come in Whitefield?
In half of years the last 32°F night comes after May 27; in one year in ten it comes after June 10. Waiting until June 10 leaves about a one-in-ten chance of a later frost.
Nearby and next
- New Hampshire climateThe statewide normals and every place in the state
- Jefferson, NH4 miles from this station, 42.5°F a year
- Bethlehem, NH7 miles from this station, 42.1°F a year
- Lancaster, NH9 miles from this station, 41.9°F a year
- Mount Washington, NH14 miles from this station, 28.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made